Barrel-forming machine



J. L. WALKER.

BARRELFORMINGMACHINE.

APPLICATION FILED JUNE H, 1922.

Patented Dec. 5,1922.

4 SHEETS-SHEET l 1:- WALKER.

BARREL FORMING MACHINE.

APPLICATION FILED JUNE I II'IQZI.

Patentefi Dec. 5, 1922.

4 SHEETSSHEET 2.

I I m III III

I I-IIIIIIIIIII Patented Eco. 5, i922.

JOSEPH L. WALKER, OF BATON ROUGE, LOUISIANA, ASSIGNOE TO K-D BARREL ANDHAIVIPEB (30., F BATON ROUGE, LOUISIANA.

BARREL-FORMING MACHINE.

Application filed. June 11, 1921. SerialNouMGfiSl;

To (tZZ w From it may concern Be it known that I, Josnrrr L. W'ALKER, acitizen Of'tl'lG United States, residing at Baton Rouge, inthe parishof'East Baton Rouge and State ofLouisiana, have invented a new anduseful Barrel-Forming Machine, of which the following is aspecification.

This invention relates to machines for forming barrels, one'of itsobjeetsbeing to provide a machine to which the assembled hoops andstaves or strips 'arei'fechthis machine operating to; grip one ofthe'staves and to then bend the assembled hoops and staves to cylindricalform so as to bring'the ends of the hoops to position where they can besecured quickly and accurately.

Another object is to provide a machine of this type having means forholding the parts firmly in place so'that they will not break during theforming'process.

A still further-object is to provide a ma chine from which the formedbarrelor drum can be removed quickly without requiring the disconnectionof any of the parts.

A still furtherobject is to provide a machine of this character which isconstantly under the control of the operator and which can be actuatedeasily to form the barrels or drums accurately.

Vith the foregoing and other objects in View which will appear as thedescription proceeds, the invention resides in the combinationandparrangement ofparts and in the details of construction hereinafterde scribed and: claimed, it being understood that, within the scope ofwhat is claimed, changes in the precise embodiment of the inventionshown can be made without departing from the spirit of the invention.

In the accompanying drawings the pre ferred form of theinvention hasbeen shown.

In said drawings Figure 1 is a side elevation of'the machine. v

Figure 2 is a plan view thereof, a portion ofzthe feed table beingremoved.

Figure 3 is a section on line 3-3, Figtire 1.

Figure 4.. is a viewpartly in elevation and partly in section of one ofthe units of the mandrel and showing the clamp closed.

Figure 5 is a similar view showing the clamp open.

Figure 6-is a seetion 'on'line 66, Fig ure 4.

Figure? is aside elevation of one of the mandrel units showing thatsideopposite to the-one illustrated in Figure 5.

Figure 8 is a plan view on 'a'reduced scale of one of the barrelmemberspriorto being shaped.

Referring to the figures by characters of reference '1, 2 and 3designate upstanding frame members connected by upper and lower beams 4and 5 whereby arigid struc ture is provided. Bearings '6 are supportedbythe members 1 and 2 and'journaled within these bearings is a shaft?havingone end portion projectingacross the space betweenthe members 2and 3 and into ;a large opening 8 provided in the member '3, saidopening being concentric with the shaft as shown particularly in 'Figure 1. Agear 9 is secured to the shaft 7between the bearings 6 and isengaged by a small drive gear 10 secured to alongitudinalsha'tt 11 whichisjournaled in the members 1', Q'and 3 and isprovided at one end with acrank arm 12 or the like whereby the shaft can be rotated readily.

Keyed on and adjustable longitudinally of that portion of the shaft 7between the members 2 and 3'is a series of mandrel units 13 each ofwhich includes a segmental body memberlthaving a hub 15 concentric withthe arcuate edge ot'the member and which engages the shaft 7. An 'earf16projects from this member 14- and is pivotally engaged by one'end of anarcuatemember 17 whichbridges across the 'hub 15. Both of the membersHand 17 have one face hollowedrout or recessed'and formed onthe recessedside of the member 17 at that end remote fromth'e ear 16 isa lug 18. Thecorresponding end of the-member 14 has a shaft 19 3'oi1rnaled therein,this shaft carrying a eam20 on the .free endof which'is provided al10ok21. The/shaft 19 extends transversely through the members 1 1 ofallof the units and the various cams 20 are connected to this shaft bymeans of set screws 22. A handle 23 is attached to one end of the shaft19 as shown in Figure 5.

Each of the members 17 is provided between the ends of its peripherywith a transverse recess 24 adjacent which is an inwardly extendingguide sleeve 25 integral with the member 17. Slidably mounted within theguide sleeve 25 is a block 26 to the outer end of which is secured agripping plate 27 adapted to extend into the recess 2 1 when the member1'7 is in one of its positions. Each block 26 has a slot 28 in its innerend provided with a cross pin 29 and this pin engages one end of an eyebolt 30 the other end of which is slidable in a bracket 31 secured tothe hub 15. -A nut 32 engages the bolt and serves to, prevent itswithdrawal from the bracket 31. A coiled spring 33 is mounted on thebolt and bears at one end against the bracket and at its other endagainst the block.

A set screw 34: may be provided on each hub 15 for engaging the shaft 7to hold the hub against sliding movement on the shaft after it has beenadjusted to proper position.

Pivotally connected to the members 2 and 3 are side strips 34: providedon their free end portions with adjustable weights 35. To each of thesestrips is pivotally connected a head 36 and the two heads are connectedby parallel rollers 37 constituting pressers. These rollers are adaptedto contact with the units of the mandrel at points above the shaft 7.

One of the upper beams a is provided with longitudinal slots indicatedat 38 and adjustably mounted on each of these slotted portions is ablock 39. Angular guide rails 40 are supported by the blocks and extendbetween the members 2 and 3. These guide rails are so spaced apart as tosupport the ends of the staves or strips to be formed into a barrel.

A shaft 11 is journaled in the members 2 and 3 and has cams 412 securedthereto and located directly under the strips 34. A crank arm 13 or thelike is secured to the shaft and by rotating the same the cams 42 can becaused to shift the strips 34: upwardly so as to move the rollers 37away from the units of the mandrel.

Under normal conditions the cams 20 are out of engagement with the lugs18 and the handle 23 is extended upwardly and inwardly as indicated inFigure 5. Thus the members 17 of the units are swung toward the members14, leaving the clamping plates 27 out of the recesses 24.

The strips or staves S to be formed into. a drum or barrel are assembledwith flexible bands or hoops B as shown in Figure 8 these bands or hoopsprojecting at one end beyond one of the end stays or strips. Theassembled structure shown in Figure 8 is then placed on the guide stripsor rails 410 and pressed forwardly until the first stave or strip Scomes under the gripping plates 27 positioned as shown in Figure 5. Itis of course to be understood that after the insertion of this stave orstrip the handle 23 is swung outwardly to the position shown in Figure 1with the result that all of the cams 20 will press against the lugs 18and thrust them upwardly into engagement with the hooks 21. Consequentlythe stave or strip engaging the plates 27 will be tightly clamped asshown in Figure 1. The rollers 37 are then lowered into engagement withthe structure, one of the rollers bearing on the membersl? while theother roller bears upon the hoops or bands B. The operator then rotatesthe crank 12 and this will cause the mandrel elements to rotate, pullingthe staves and hoops therewith so that they will be caused to completelyencircle the mandrel units, the projecting ends of the bands or hoopsultimately being brought to position over the opposed ends where theycan be nailed or otherwise secured. The handle 23 can then be swunginwardly so as to release the lugs 18 from the hook 21 and,consequently, the members 17 will promptly swing inwardly out of contactwith the staves adjacent thereto and the formed drum or barrel body canthus be withdrawn from the machine by pulling it longitudinally off ofthe collapsed mandrel and through the opening 8 in the member 3. Byhaving the springs 33 the plates 27 can be thrust inwardly against theaction of the springs so as to permit the formed barrel to be slid offof the plates readily.

By mounting the rollers 37 in pivoted heads 36, they act as equalizersfor distributing pressure equally where the material to be shaped isfirst bent on the mandrel. Thus danger of cracking or breaking the 110material is greatly reduced.

What is claimed is 1. In a machine for forming veneer barrels thecombination with spaced mandrel units mounted for rotation, each unitin- 115 eluding a segmental body member and an arcuate pivoted member,of gripping plates mounted. on the body members, means for shifting thepivoted members for co-operation with the plates to engage one end of120 the stock to be shaped into a barrel, spaced parallel rollers, andmeans for binding said rollers upon the stock throughout the widththereof and along parallel lines.

2. A machine for making veneer barrels 125 including rotatable mandrelunits each having a segmental body portion and an arcuate pivotedportion, gripping plates, yielding means for connecting said plates tothe body portions, means for simultaneously 13G shifting the arcuateportions relative to the body portions to bind one end of the barrelforming stock against the gripping plates, said plates being shiftableinwardly relative to the arcuate portions When the barrel is removed.

3. In a machine for making veneer barrels a plurality of rotatablemandrel units each including a segmental body portion and a pivotedarcuate portion, there being a recess in the periphery of each areuateportion for the reception of one end of barrel forming stock, grippingplates movably connected to the body portions and yieldingly supportedadjacent the recesses, means for simultaneously shifting the arcuateportions toward the ripping plates to bind upon one end of the liarrel:torming stock projecting into the recesses, said plates being shiftableinwardly into the recesses and relative to the arcuate portions when theformed barrel is removed.

4:. In a machine for forming veneer barrels rotatable mandrel members,means (:0- operating therewith for detachably-gripping one end of thestock to be formed into a barrel, heads pivotally mounted, parallelrollers carried by the heads, and yielding means for binding the rollersupon the engaged stock throughout the width thereof to clamp the stockalong parallel lines upon the mandrel members.

In testimony that I claim the foregoing as my own, I have hereto afiiXedmy signature in the presence of two Witnesses.

JOSEPH L. WALKER.

Witnesses IVY E. SIMPSON, AGNES RooKELLI.

